Copyright

© ANPEC Electronics Corp.

Rev. A.2 - Dec., 2012

APW7334

www.anpec.com.tw

3

Symbol

Parameter

Range

Unit

Ambient Temperature

-40 ~ 85

Junction Temperature

-40 ~ 125

Recommended Operating Conditions (Cont.)

Note 3 : Refer to the typical application circuit.

Electrical Characteristics

APW7334

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

SUPPLY CURRENT

VIN Supply Current

-

1.9

-

mA

VIN Shutdown Supply Current

-

0.3

-

µA

POWER-ON-RESET (POR)

VIN POR Voltage Threshold

3.8

4.05

4.4

V

VIN POR Hysteresis

-

0.3

-

V

REFERENCE VOLTAGE

Reference Voltage

Regulated on FB pin

0.784

0.8

0.816

V

OSCILLATOR AND DUTY CYCLE

Oscillator Frequency

300

340

380

kHz

Foldback Frequency

-

110

-

kHz

Maximum Converter’s Duty

-

90

-

%

Minimum On Time

(Note 5)

-

220

-

ns

PFM MODE OPERATION

PFM Mode Current Limit

-

0.8

-

A

PWM to PFM Inductor Peak Threshold

-

0.6

-

A

POWER MOSFET

High/low Side MOSFET On Resistance

-

110

-

m

Ω

High/Low Side MOSFET Leakage

Current

-

-

10

µA

CURRENT-MODE PWM CONVERTER

Error Amplifier Transconductance

-

820

-

µA/V

Error Amplifier Voltage Gain

-

400

-

V/V

Switch Current to COMP Voltage

Transconductance

-

4.5

-

A/V

Refer to the typical application circuits. These specifications apply over V